Allyl Diglycol Carbonate was synthesized from diethylene glycol, sodium carbonate, allyl chloride and carbon dioxide. The effects of catalyst, solvent, reaction temperature, raw material ratio, reaction pressure and feeding method on the reaction were investigated, and the better process conditions were obtained. The conversion of diethylene glycol was 93% and the selectivity was 37%. The chemical is referred to as ADC. Just as many other chemical materials, Allyl Diglycol Carbonate in China also enjoys a great reputation.
Allyl Diglycol Carbonate (ADC) is a kind of monomer made from diethylene glycol. The polymer PADC has good light transmittance, light weight, high strength, wear resistance, corrosion resistance, excellent optical, thermal and mechanical properties, chemical corrosion resistance and shielding effect of r-ray. It can not only be used as optical material to replace plexiglass, but also can be copolymerized with other monomers to produce high strength as well as lightweight materials and used to make optical resin lenses.
The ADC monomer is in a liquid state and is polymerized and cured under heating and initiator conditions. After mirroring, the refractive index is 1.499, the density is 1.32, and the Abbe number is 58-59. And it has strong impact resistance and high transmittance. It can be dyed, hardened and coated. Through hardening and coating treatment, the lens surface has more scratch resistance, and the visible light transmittance can reach more than 99%. The synthesis methods can be divided into three categories: phosgene method, CO2 carbonylation method and transesterification method. The Allyl Diglycol Carbonate monomer produced by these methods can be polymerized into an optical resin lens with a refractive index of 1.499 under the action of the initiator diisopropyl dicarbonate peroxide.
